NDLI: Effects of La$^{3+}$ on the Active Oxygen-Scavenging Enzyme Activities in Cucumber Seedling Leaves

Content Provider	Springer Nature Link
Author	Shi, P. Chen, G. C. Huang, Z. W.
Copyright Year	2005
Abstract	The effects of La$^{3+}$ on the antioxidant enzyme activities and the relative indices of cellular damage in cucumber seedling leaves were studied. When cucumber seedlings were treated with low concentrations of LaCl$_{3}$ (0.002 and 0.02 mM), peroxidase (PO) activity increased, and catalase (CAT) activity was similar to that of control leaves at 0.002 mM La$^{3+}$ and increased at 0.02 mM La$^{3+}$, whereas superoxide dismutase (SOD) activity did not change significantly. The increase in the contents of chlorophyll (including chlorophylls a and b), carotenoids in parallel with the decrease in the level of malondialdehyde (MDA) suggested that low concentration of La$^{3+}$ promoted plant growth. However, except the increase in SOD activity at 2 mM La$^{3+}$, CAT and PO activities and the contents of pigments decreased at high concentrations of La$^{3+}$ (0.2 and 2 mM), leading to the increase of MDA content and the inhibition of plant growth. It is suggested that lanthanum ion is involved in the regulation of active oxygen-scavenging enzyme activities during plant growth.
Starting Page	294
Ending Page	297
Page Count	4
File Format	PDF
ISSN	10214437
Journal	Russian Journal of Plant Physiology
Volume Number	52
Issue Number	3
e-ISSN	16083407
Language	English
Publisher	Nauka/Interperiodica
Publisher Date	2005-01-01
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cucumis sativus lanthanum ion antioxidant enzymes cellular damage Plant Sciences Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Plant Science

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